ATE380409T1 - Digitaler klasse-d-audioverstärker - Google Patents

Digitaler klasse-d-audioverstärker

Info

Publication number
ATE380409T1
ATE380409T1 AT01959517T AT01959517T ATE380409T1 AT E380409 T1 ATE380409 T1 AT E380409T1 AT 01959517 T AT01959517 T AT 01959517T AT 01959517 T AT01959517 T AT 01959517T AT E380409 T1 ATE380409 T1 AT E380409T1
Authority
AT
Austria
Prior art keywords
deviation
digital
deviation values
audio
audio amplifier
Prior art date
Application number
AT01959517T
Other languages
English (en)
Inventor
John W Ulrick
Original Assignee
John W Ulrick
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John W Ulrick filed Critical John W Ulrick
Application granted granted Critical
Publication of ATE380409T1 publication Critical patent/ATE380409T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/538—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration
    • H02M7/53803—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration with automatic control of output voltage or current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
    • H03F1/304—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device and using digital means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier
AT01959517T 2000-08-14 2001-08-03 Digitaler klasse-d-audioverstärker ATE380409T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/638,465 US6498531B1 (en) 2000-08-14 2000-08-14 Digital class-D audio amplifier

Publications (1)

Publication Number Publication Date
ATE380409T1 true ATE380409T1 (de) 2007-12-15

Family

ID=24560146

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01959517T ATE380409T1 (de) 2000-08-14 2001-08-03 Digitaler klasse-d-audioverstärker

Country Status (7)

Country Link
US (1) US6498531B1 (de)
EP (1) EP1310041B1 (de)
JP (2) JP4841800B2 (de)
KR (1) KR100847075B1 (de)
AT (1) ATE380409T1 (de)
DE (1) DE60131755T2 (de)
WO (1) WO2002015393A2 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6819912B2 (en) * 2001-11-05 2004-11-16 Freescale Semiconductor, Inc. Variable frequency switching amplifier and method therefor
US7146015B2 (en) * 2001-12-12 2006-12-05 Motorola Inc. Frequency threshold audio activity detector
ATE396536T1 (de) * 2003-03-21 2008-06-15 D2Audio Corp Systeme und verfahren zum schutz von audioverstärkerschaltungen
US7590251B2 (en) * 2003-03-21 2009-09-15 D2Audio Corporation Clip detection in PWM amplifier
US7706545B2 (en) * 2003-03-21 2010-04-27 D2Audio Corporation Systems and methods for protection of audio amplifier circuits
US7929718B1 (en) 2003-05-12 2011-04-19 D2Audio Corporation Systems and methods for switching and mixing signals in a multi-channel amplifier
US7515072B2 (en) 2003-09-25 2009-04-07 International Rectifier Corporation Method and apparatus for converting PCM to PWM
KR100609266B1 (ko) * 2003-11-03 2006-08-04 삼성전자주식회사 폴트 감지 방법 및 이를 수행하기 위한 회로, 폴트에 따른파워앰프 회로 보호 방법 및 폴트를 감지하는 파워 앰프
CN100525083C (zh) * 2004-01-07 2009-08-05 奥特蓝星技术股份有限公司 提供改进的脉宽调节放大器的电源拒斥的装置和方法
WO2005109631A1 (en) * 2004-05-10 2005-11-17 Koninklijke Philips Electronics N.V. Overcurrent limiting method and device
US7286010B2 (en) 2006-01-26 2007-10-23 D2Audio Corporation Systems and methods for over-current protection
DE602007008064D1 (de) * 2006-02-07 2010-09-09 D2Audio Corp Pulsbreitenmodulator mit feedback/feedforward-schutz
US7957489B2 (en) * 2006-02-17 2011-06-07 Canon Kabushiki Kaisha Digital amplifier and television receiving apparatus
US7400191B2 (en) 2006-04-07 2008-07-15 Manuel De Jesus Rodriguez Switching power amplifier
FR2905774A1 (fr) * 2006-09-08 2008-03-14 Shaktiware Soc Par Actions Sim Generateur de tension programmable
US7576604B2 (en) * 2006-12-15 2009-08-18 Bin Xu All-digital class-D audio amplifier
US7391346B1 (en) 2007-02-05 2008-06-24 Sigmatel, Inc. Switching amplifier system and method
US7705672B1 (en) 2007-02-12 2010-04-27 Manuel De Jesus Rodriguez Buck converters as power amplifier
KR100855685B1 (ko) * 2007-04-02 2008-09-03 주식회사 디엠비테크놀로지 다이렉트 디지털 ｄ급 증폭기를 이용한 오디오 시스템
TWI474612B (zh) * 2007-12-31 2015-02-21 Intersil Inc 用於經改良的過電流截波之系統及方法
EP2096753B1 (de) * 2008-02-29 2011-11-30 STMicroelectronics (Grenoble) SAS Schaltverstärker
US7800437B2 (en) * 2008-05-21 2010-09-21 Silicon Laboratories Inc. Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation
US20100188136A1 (en) * 2009-01-27 2010-07-29 Rockford Corporation Dynamic thermal management system and method
KR20110036371A (ko) 2009-10-01 2011-04-07 삼성전자주식회사 오디오 증폭기
CA2802862A1 (en) 2010-06-14 2011-12-22 Elwood G. Norris Improved parametric signal processing and emitter systems and related methods
KR101871360B1 (ko) * 2011-03-09 2018-06-26 삼성전자주식회사 오디오 신호 출력 방법 및 그에 따른 오디오 신호 출력 장치
US8421535B2 (en) * 2011-08-08 2013-04-16 Adamson Systems Engineering Inc. Method and apparatus for reducing distortion in Class D amplifier
ITRM20110609A1 (it) 2011-11-17 2013-05-18 St Ericsson Sa Digital class-d amplifier and digital signal processing method
WO2013106596A1 (en) * 2012-01-10 2013-07-18 Parametric Sound Corporation Amplification systems, carrier tracking systems and related methods for use in parametric sound systems
WO2013158298A1 (en) 2012-04-18 2013-10-24 Parametric Sound Corporation Parametric transducers related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
NL2016605B1 (en) 2016-04-14 2017-11-02 Axign B V Digital audio converter and amplifier controller.
CN108718198B (zh) * 2018-08-07 2023-11-03 上海艾为电子技术股份有限公司 一种数字模拟转换器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593611U (ja) * 1982-06-29 1984-01-11 ヤマハ株式会社 パルス幅変調増幅回路
JPS58157221A (ja) * 1982-03-13 1983-09-19 Nippon Gakki Seizo Kk パルス幅変調回路
US4683439A (en) * 1986-01-09 1987-07-28 Honeywell Inc. Digitally driven switching power amplifier system
US5406284A (en) 1992-12-31 1995-04-11 Monolith Technologies Corporation Methods and apparatus for the quantization and analog conversion of digital signals
WO1994021036A1 (en) * 1993-03-02 1994-09-15 Kirn Larry J Switching amplifier with impedance transformation output stage
JPH06303049A (ja) * 1993-04-14 1994-10-28 Mitsubishi Electric Corp Ｐｗｍ増幅器
JPH06303061A (ja) * 1993-04-16 1994-10-28 Sony Corp 電子機器の調整装置
CA2109755C (en) 1993-11-23 2004-11-02 John Barry French Composite bridge amplifier with output overload and thermal protection
US5559467A (en) 1995-01-27 1996-09-24 The Regents Of The University Of California Digital, pulse width modulation audio power amplifier with noise and ripple shaping
US5617058A (en) * 1995-11-13 1997-04-01 Apogee Technology, Inc. Digital signal processing for linearization of small input signals to a tri-state power switch
DE19619208A1 (de) * 1996-05-11 1997-11-13 Klugbauer Heilmeier Josef Digitaler Verstärker
US5973368A (en) 1996-06-05 1999-10-26 Pearce; Lawrence G. Monolithic class D amplifier
JP3514978B2 (ja) * 1998-07-31 2004-04-05 シャープ株式会社 ディジタルスイッチングアンプ
US6127885A (en) * 1998-08-31 2000-10-03 Cello, Limited Class D amplifiers including transition zone modulation
JP2002171140A (ja) * 2000-12-01 2002-06-14 Mitsubishi Electric Corp オーディオ信号増幅出力回路

Also Published As

Publication number Publication date
KR100847075B1 (ko) 2008-07-18
WO2002015393A3 (en) 2002-05-10
JP2004507140A (ja) 2004-03-04
JP4841800B2 (ja) 2011-12-21
US6498531B1 (en) 2002-12-24
KR20030031154A (ko) 2003-04-18
WO2002015393A2 (en) 2002-02-21
EP1310041A2 (de) 2003-05-14
EP1310041B1 (de) 2007-12-05
DE60131755D1 (de) 2008-01-17
DE60131755T2 (de) 2008-11-13
JP5342599B2 (ja) 2013-11-13
JP2011142697A (ja) 2011-07-21

Similar Documents

Publication Publication Date Title
ATE380409T1 (de) Digitaler klasse-d-audioverstärker
AU4340300A (en) Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform
CN1258393A (zh) Pwm放大器
AU2001297729A1 (en) Modulator using class-e stage
ATE279811T1 (de) Pulzreferiertes steuerverfahren für verbesserte leistungsverstärkung eines pulsmodulierten signals
EP1134917A3 (de) Verfahren zur Erzeugung von ein und mehrkanaligen breitbandigen optischen analogen Pulslagenwellenformen
MY111848A (en) Frequency synthesizer having modulation deviation correction via presteering stimulus
US8410832B2 (en) Method and apparatus for producing triangular waveform with low audio band content
ATE482520T1 (de) Erzeugung von modulierten hochfrequenzsignalen
ATE110198T1 (de) Tonfrequenzverstärker mit phasenmodulierter pulsbreitenmodulation.
EP1427101A4 (de) Schaltverstärkungsvorrichtung
TW344913B (en) Class D amplifier
ATE460770T1 (de) Blind-linearisierung unter anwendung von kreuz- modulation
US11088662B2 (en) Digital amplifier and output device
JPH02164113A (ja) 電力増幅器
JP2587849Y2 (ja) 振幅変調送信機
RU96117010A (ru) Усилитель аналогового сигнала и усилитель звукового сигнала (варианты)
JPS6162213A (ja) 振幅変調高周波電力増幅装置
JP3028486U (ja) 中波放送装置
JPS5931243B2 (ja) シンプクヘンチヨウホウシキ
KR890008754A (ko) 비디오 테이프 레코오더의 음성신호 기록 및 재생회로
KR20000004020U (ko) 오디오 파워 증폭기
TH26169B (th) เครื่องขยายสัญญาณแอนะลอกและเครื่องขยายสัญญาณเสียง

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties